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StandaloneMmPkg: Install gEfiMmCommunicationProtocolGuid
Install gEfiMmCommunicationProtocolGuid instance in the MmCommunicationDxe driver. Signed-off-by: Dun Tan <dun.tan@intel.com>
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@ -16,6 +16,13 @@ EFI_MM_COMMUNICATION2_PROTOCOL mMmCommunication2 = {
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MmCommunicate2
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MmCommunicate2
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};
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};
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//
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// PI 1.7 MM Communication Protocol instance
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//
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EFI_MM_COMMUNICATION_PROTOCOL mMmCommunication = {
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MmCommunicate
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};
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MM_COMM_BUFFER mMmCommonBuffer;
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MM_COMM_BUFFER mMmCommonBuffer;
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EFI_SMM_CONTROL2_PROTOCOL *mSmmControl2;
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EFI_SMM_CONTROL2_PROTOCOL *mSmmControl2;
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@ -45,7 +52,7 @@ MmVirtualAddressChangeEvent (
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Processes the communication buffer for Mm communication protocols.
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Processes the communication buffer for Mm communication protocols.
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This function encapsulates the common logic for handling communication buffers
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This function encapsulates the common logic for handling communication buffers
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used by MmCommunicate2 functions.
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used by MmCommunicate2 and MmCommunicate functions.
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@param[in, out] CommBuffer Pointer to the MM communication buffer
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@param[in, out] CommBuffer Pointer to the MM communication buffer
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@param[in, out] CommSize The size of the data buffer being passed in. On exit, the size of data
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@param[in, out] CommSize The size of the data buffer being passed in. On exit, the size of data
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@ -164,6 +171,40 @@ MmCommunicate2 (
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return ProcessCommunicationBuffer (CommBufferVirtual, CommSize);
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return ProcessCommunicationBuffer (CommBufferVirtual, CommSize);
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}
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}
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/**
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Communicates with a registered handler.
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This function provides a service to send and receive messages from a registered UEFI service.
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@param[in] This The EFI_MM_COMMUNICATION_PROTOCOL instance.
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@param[in, out] CommBuffer Pointer to the MM communication buffer
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@param[in, out] CommSize The size of the data buffer being passed in. On exit, the size of data
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being returned. Zero if the handler does not wish to reply with any data.
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This parameter is optional and may be NULL.
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@retval EFI_SUCCESS The message was successfully posted.
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@retval EFI_INVALID_PARAMETER The CommBuffer was NULL.
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@retval EFI_BAD_BUFFER_SIZE The buffer is too large for the MM implementation.
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If this error is returned, the MessageLength field
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in the CommBuffer header or the integer pointed by
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CommSize, are updated to reflect the maximum payload
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size the implementation can accommodate.
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@retval EFI_ACCESS_DENIED The CommunicateBuffer parameter or CommSize parameter,
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if not omitted, are in address range that cannot be
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accessed by the MM environment.
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**/
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EFI_STATUS
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EFIAPI
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MmCommunicate (
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IN CONST EFI_MM_COMMUNICATION_PROTOCOL *This,
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IN OUT VOID *CommBuffer,
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IN OUT UINTN *CommSize OPTIONAL
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)
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{
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return ProcessCommunicationBuffer (CommBuffer, CommSize);
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}
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/**
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/**
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The Entry Point for MmCommunicateDxe driver.
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The Entry Point for MmCommunicateDxe driver.
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@ -209,6 +250,14 @@ MmCommunicationEntryPoint (
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);
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);
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ASSERT_EFI_ERROR (Status);
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ASSERT_EFI_ERROR (Status);
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Status = gBS->InstallProtocolInterface (
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&Handle,
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&gEfiMmCommunicationProtocolGuid,
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EFI_NATIVE_INTERFACE,
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&mMmCommunication
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);
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ASSERT_EFI_ERROR (Status);
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//
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//
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// Register the event to convert the pointer for runtime.
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// Register the event to convert the pointer for runtime.
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//
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//
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@ -22,6 +22,7 @@
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#include <Protocol/SmmControl2.h>
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#include <Protocol/SmmControl2.h>
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#include <Protocol/MmCommunication2.h>
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#include <Protocol/MmCommunication2.h>
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#include <Protocol/MmCommunication.h>
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#include <Guid/MmCommBuffer.h>
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#include <Guid/MmCommBuffer.h>
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#include <Guid/EventGroup.h>
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#include <Guid/EventGroup.h>
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@ -59,4 +60,35 @@ MmCommunicate2 (
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IN OUT UINTN *CommSize OPTIONAL
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IN OUT UINTN *CommSize OPTIONAL
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);
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);
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/**
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Communicates with a registered handler.
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This function provides a service to send and receive messages from a registered UEFI service.
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@param[in] This The EFI_MM_COMMUNICATION_PROTOCOL instance.
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@param[in, out] CommBufferPhysical Physical address of the MM communication buffer
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@param[in, out] CommSize The size of the data buffer being passed in. On exit, the size of data
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being returned. Zero if the handler does not wish to reply with any data.
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This parameter is optional and may be NULL.
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@retval EFI_SUCCESS The message was successfully posted.
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@retval EFI_INVALID_PARAMETER The CommBuffer was NULL.
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@retval EFI_BAD_BUFFER_SIZE The buffer is too large for the MM implementation.
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If this error is returned, the MessageLength field
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in the CommBuffer header or the integer pointed by
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CommSize, are updated to reflect the maximum payload
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size the implementation can accommodate.
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@retval EFI_ACCESS_DENIED The CommunicateBuffer parameter or CommSize parameter,
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if not omitted, are in address range that cannot be
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accessed by the MM environment.
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**/
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EFI_STATUS
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EFIAPI
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MmCommunicate (
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IN CONST EFI_MM_COMMUNICATION_PROTOCOL *This,
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IN OUT VOID *CommBufferPhysical,
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IN OUT UINTN *CommSize OPTIONAL
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);
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#endif
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#endif
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@ -45,6 +45,7 @@
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[Protocols]
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[Protocols]
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gEfiMmCommunication2ProtocolGuid
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gEfiMmCommunication2ProtocolGuid
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gEfiSmmControl2ProtocolGuid
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gEfiSmmControl2ProtocolGuid
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gEfiMmCommunicationProtocolGuid
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[Depex]
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[Depex]
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gEfiSmmControl2ProtocolGuid
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gEfiSmmControl2ProtocolGuid
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